Extreme Max Pro Series Adjustable Snowmobile Dolly System. The system's clever design slides underneath the snowmobile's skis and hooks into the ski loop providing a set of drivable wheels to easily maneuver your sled around the garage yard and trailer. The oversized wheels easily handle traveling over grass and gravel surfaces without worry of wearing down the snowmobile's ski carbides or scratching the surface underneath the skis. Each dolly features a full width adjustment to allow the perfect fit for nearly any width ski. Pro Series Adjustable Snowmobile Dollies are drivable up to 5 MPH and work with any modern snowmobile up to 650 lbs. Specifications for Extreme Max 5800.2018 Pro Series Adjustable Snowmobile Dolly System: Manufacturer: Extreme Max Color: Red/Black Condition: New Features of Extreme Max 5800.2018 Pro Series Adjustable Snowmobile Dolly System Drivable up to 5 MPH the Pro Series Adjustable Dolly System allows you to maneuver your snowmobile around the garage yard or trailer with ease Oversize wheels and sturdy steel construction easily handle rough terrain including grass and gravel while protecting surfaces from ski carbide scratches Dolly system securely connects to the skis in just seconds no tools required Full width adjustments during assembly allow for a custom fit to your sled's skis Maximum Snowmobile Weight: 650 lbs. Package Contents: Extreme Max 5800.2018 Pro Series Adjustable Snowmobile Dolly System Extreme Max 5800.2018: Pro Series Adjustable Snowmobile Dolly System